OPP functions as described in Documentation/power/opp.txt
should be accessed under rcu_locks.
Signed-off-by: Nishanth Menon <nm@xxxxxx>
---
arch/arm/mach-omap2/pm.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c
index d085f29..7355347 100644
--- a/arch/arm/mach-omap2/pm.c
+++ b/arch/arm/mach-omap2/pm.c
@@ -198,14 +198,17 @@ static int __init omap2_set_init_voltage(char *vdd_name, char *clk_name,
freq = clk->rate;
clk_put(clk);
+ rcu_read_lock();
opp = opp_find_freq_ceil(dev, &freq);
if (IS_ERR(opp)) {
+ rcu_read_unlock();
printk(KERN_ERR "%s: unable to find boot up OPP for vdd_%s\n",
__func__, vdd_name);
goto exit;
}
bootup_volt = opp_get_voltage(opp);
+ rcu_read_unlock();
if (!bootup_volt) {
printk(KERN_ERR "%s: unable to find voltage corresponding"
"to the bootup OPP for vdd_%s\n", __func__, vdd_name);
--
1.7.1
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